Alibaba Global Shopping Festival 2021 on the Cloud

11.11 Number Guessing Contest

Guess the Numbers of the Technologies behind the 2021 Double 11 Shopping Festival to Win Up to $1,111 Cash Prize + $1,111 Alibaba Cloud Credits, and exclusive certifications. (The contest has ended.)

Guess the Numbers of 11.11 – Powered by Cloud Technologies

Double 11, also known as Singles' Day, is the world's largest shopping festival hosted by Alibaba Group. During the 2020 edition of Double 11, with the support of cloud technologies, Alibaba set a new sales record of 498.2 billion CNY (74.1 billion USD), and broke several other technology records.

498.2 Billion CNY

GMV (Gross Merchandise Value)

2.32 Billion

Total Orders Placed


Total Data Processed

583 Thousand

Peak Order Creation per Second

4.0 Billion

Peak Real-time Computing Processing per Second
What will these numbers be in the 2021 edition of Double 11? Guess and win attractive prizes!

Rewards & Rules

Rewards for Overall Ranking

1st Place

$1111 Cash Prize + $1111 Alibaba Cloud Credits

2nd Place

$800 Cash Prize + $800 Alibaba Cloud Credits

3rd Place

$500 Cash Prize + $500 Alibaba Cloud Credits

4th to 10th Places

$200 Cash Prize + $100 Alibaba Cloud Credits for Each Winner

Reward for Individual Number Ranking

1st Places of Each Number

$100 Cash Prize + $100 Alibaba Cloud Credits

To be eligible for this contest, you are required to: 1) have paid for at least one pre-paid product or service on Alibaba Cloud International Website; 2) share the contest to at least one of your accounts on Facebook, Twitter and/or LinkedIn. Follow the steps detailed in the ‘How to Join’ section above to participate in the contest.
If you submit a screenshot of your social post of this contest, regardless of whether you are among the final prize winners, you will have a chance to get a free voucher of the Alibaba Cloud Certification – Cloud Technologies Behind Double 11 Shopping Festival.
The deadline for the contest is Nov 10, 2021 at 18:00:00 UTC+8.
After the final numbers are released, we will rank the participants of the contest based on how close their answers are to the final results. First place in each individual number ranking will win a reward for an individual number ranking. A participant's overall ranking will be the aggregated number of their individual number ranking. The top ten participants will win the prizes as specified above.
Alibaba Group may not release one or more of the numbers in the contest. In this case, we will only rank contest participants against the numbers Alibaba Group has released. The released numbers will be sent to your email address.
If two or more participants tie, the participant that submits their entry earlier will rank higher.
All cash prizes are pre-tax amount.
Alibaba Cloud reserves the right to update the Awards & Rules any time without prior notice. Alibaba Cloud may disqualify any participant at its own discretion for such participant’s violation of these Awards & Rules or Alibaba Cloud’s terms and conditions.
Employees of Alibaba Group are excluded from all rankings and awards.

Cloud Technologies Behind the Numbers

Behind the numbers are the cloud technologies from Alibaba Cloud that powered the shopping festival in the past years and will power the festival in 2021. Check the following materials discussing how the cloud technologies powered the festival to learn more about it.

Infographic: Technologies Behind the 2020 Double 11 Shopping Festival

This infographic highlights some of the key technologies that enabled the record-breaking performance at last year's Double 11!

Learn more >

Frontend Technology behind Tmall's Record-Breaking US$74.1 Billion GMV

This article gives an overview of the thoughts, experiences, and technologies of the Taobao Frontend Department (Taobao FED) during the 2020 Double 11.

Learn more >

Why Databases Are Key to Alibaba’s 2020 Double 11 Sales

With each order split into multiple database transactions, ensuring the scalability and elasticity of database systems was key to the success of the last year's Double 11.

Learn more >

Technological Innovations in the 2020 Double 11 Global Shopping Festival

In this blog, we'll take a look at some of the coolest technology innovations from last year's action-packed Double 11 shopping festival.

Learn more >

See the Impressive Technologies behind This Year's Double 11

In this article, Alibaba CTO Jeff Zhang discusses all the innovative technologies that powered 2019's Double 11.

Learn more >

Double 11 with Alibaba Cloud: $1B Gross Merchandise Volume in 68 Seconds with Zero Downtime

This article details some of the innovative technologies behind some of the record-breaking figures of 2019's Double 11 global shopping festival.

Learn more >

How Alibaba Cloud Helped Tmall Expand the Double 11 Shopping Festival for the Past 10 Years

We take a look at how two seemingly unrelated events ten year ago led to the continual success of Alibaba's annual Double 11 Shopping Festival.

Learn more >

How Elastic Compute Service Boosts Sales at the Double 11 Global Shopping Festival

Read this blog to learn more about how Alibaba Cloud's Elastic Computing capabilities powered the Alibaba Double 11 Global Shopping Festival.

Learn more >

Safeguarding the Double 11 Shopping Festival with Powerful Security Technologies

Wu Hanqing, Chief Security Researcher at Alibaba Cloud, talks about the various security measures to ensure the success of the Double 11 Shopping Festival.

Learn more >

Behind Alibaba's Double 11 Mysterious "Dragonfly" Technology ®C PB-Grade Large-File Distribution System

In this article, we will discover how Alibaba Dragonfly file distribution system helps support the annual Alibaba Singles' Day (Double 11) online shopping festival.

Learn more >

How Database Technology Powers Alibaba's Double 11 Global Shopping Festival

Discover how Alibaba Cloud's database solutions have helped businesses in real-world environments, including the Double 11 Global Shopping Festival.

Learn more >

Webinar: Technologies behind the Singles' Day Global Shopping Festival

This webinar talks about the unique challenges of the world's largest e-commerce promotional event when hosted on cloud, and how they are tackled with Alibaba Cloud's solutions.

Learn more >

Alibaba Cloud 2021 Double 11 Big Sale

Explore the cloud technologies and products empowering the shopping festival with exclusive offer.


1. Can I join the contest if I only paid for one subscription product on Alibaba Cloud 2 years ago?

Yes, if you have paid for any prepaid product or service on Alibaba Cloud – regardless of when you did so – you may participate the contest.

2. Can I join the contest if I have paid for pay-as-you-go products on Alibaba Cloud, but have not paid for any subscription products?

No. Please purchase at least one prepaid product before joining this contest. You are encouraged to explore the $1 offers in the Alibaba Cloud 2021 Double 11 Cloud Services Sale.

3. When will the results be announced?

The result will be announced within 2 weeks after November 11, 2021. If you are among the winners, you will be notified via email.

4. Can I win more than one prizes?

Yes, one participant may be able to win a reward for the overall ranking, and win one or more rewards for individual number rankings.

5. Can you give an example of how the rewards be decided for individual number ranking and for the overall ranking?

If three participants join the contest: Participant A, Participant B and Participant C. Participant A's rankings of all numbers are 1st, 2nd, 1st, 2nd, 1st; Participant B's rankings of all numbers are 2nd, 3rd, 2nd, 3rd, 2nd; Participant C's rankings of all numbers are 3rd, 1st, 3rd, 1st, 3rd. Thus, Participant A, B and C's aggregate number on overall ranking are 7, 12 and 11 respectively. As a result, Participant A wins the first place in the overall ranking and wins three rewards for individual number rankings. Participant C wins the second place in the overall ranking and wins two rewards for individual number rankings, and participant B wins the third place in the overall ranking with no individual number ranking.

6. When can I receive the cash prize and the credits if I am a winner?

For credits, you will get the credits within one week after the result is announced. For cash awards, we will ask you to submit your designated bank account and verification information to receive the cash awards after the result is announced, and then wire the cash award to your designated bank account within one month upon receipt of your account information.

7. What is the validity period of the cloud credits?

The credits for the top 3 of overall ranking will be valid until March 31, 2022. The credits for all other award winners will be valid until Dec 31, 2021.

8. Which products or services can I purchase with the credits?

You can use the credits for all products or services on Alibaba Cloud International Website, excluding Marketplace products and special offers.
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